<template>
  <div class="todo-header">
    <input type="text" placeholder="输入任务名称" v-model="title" @keyup.enter="add">
  </div>
</template>

<script>
import{nanoid} from 'nanoid'
export default {
    name:'MyHeader',
    data() {
        return {
            title:''
        }
    },
    // props:['AddTodo'],
    methods: {
        add(){
            if(this.title.trim()==='')
                return alert(`输入不能为空！`)
        //   console.log(this.title);
            const todoObj = {
                id:nanoid(),
                title:this.title,//e.target.value,
                done:false
            }
            // console.log(todoObj);
            // this.AddTodo(todoObj)
            this.$emit('AddTodo',todoObj    )
            this.title=''
        }
    },
}
</script>

<style scoped>
    .todo-header input{
        width: 560px;
        height: 28px;
        font-size: 14px;
        border: 1px solid #ccc;
        border-radius: 4px;
        padding: 4px 7px;
    }
    .todo-header input:focus{
        outline: none;
        border-color: rgba(82, 168, 236, 0.8);
        box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075),0 0 8px rgba(82, 168, 236, 0.6);
    }
</style>